Clapper box for planers



April 2, 1929- c. E. LINDEN ET AL 07,558

CLAPPER BOX FOR PLANERS Original Filed Fep. 1a; 1922 avg 70w wm'o Patented Apr. 2, 1929.

UNITED STATES PATENT OFFICE.

CARL E. LINDEN AND. GEORGE H. LANGEN, or CINCINNATI, 01110, ASSIGNORS TO THE- GINGINNATIYIPLANER COMPANY, or CINCINNATI, OHIO, .AICOBPORA'II'ON or OHIO.

CLAlPIPER BOX non rLAN'ERs.

Original application filed February 16, 1922, Serial No. 537,061. Divided and this application filed.

April 8, 1925.

Our invention relates to the boxes that carry the tool upon the cross rails ofmetal planers, the same being known as clapper boxes, and this application is a division'of our copending application Serial No. 537,061, Iiled February 16, 1922.

In metal planers the tool carrying heads must be shifted to various angles, and hence are of pivotal support, and are held in place by suitable clamping devices. In the adjusting of the heads the boxes are naturally, first free from the clamps, and in this operation the boxes will often swing around, 'due to being over-balanced and the parts thereof or the tools strike the workman and injure him, or

strike a projecting part of the work and mar it. 7

It is the object of our invention to provide: a clapper box or tool head which has a rock ing motion, and a full clamping element to hold it tightly in adjusted position, but in which the factor has been introduced of limiting the rocking motion by a stop pin or pins, so arranged that the devices cannot revolve clear around, but only sufficiently to take care of all adjustment. I

We accomplish construction and arrangement of parts to be hereinafter more specifically pointed out and claimed.

In the drawings:

Figure 1 1s a perspective view of a tool carrying devlce, such as is mounted on a planer cross rail.

Figure .Zis a front elevation of the clapper fining the main body of the clamp from the overhanging flange thereof, is Curved, asis the top of the web 5 so as to permit the box to rock on its pivot when the clamp is slightly relaxed.

The clamping engagement is effected by tightening the clamp down by means of the our objects by that certain Serial No. 21,656.

bolts 3, which presses thefiange 6 of the clamp against the web 5 of the box.

In one form'ofthe device a space is. left between the shoulder '7 of the clamp and the top of the web-5, and the stop devices to prevent the box revolving around when freed, are located inthis space. These stop devices are in the form of pins or lugs. On the left of the top of'the web is set a pin 8, which engages a pin 9 on the right'of the shoulder 7. On the right of the top of the web is a pin 10, which engages a pin 11, on the left of the shoulder 7. The pinsS and 11, and the pins 9 and 10, lie alongside of each other and do not engage each other. i

It will be noted that we thus provide forthe safety factor, which we have heretofore noted, Without reducing the force of the clamp, or itsrelease by a slight relaxation of thebolts. I

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is

1 In a metal planer, the combination with the mounting member of a tool head, of a clapper box mounted thereon, and a clamp having shoulder extending downwardly over the upper edge of said clapper lJOX,S2L1(l shoulder an are shaped shoulder and a flange on said and edge beingformed on an arc with clearanc'e between said shoulder and edge, and means extending from said shoulder and edge providing stops for saidclapper box at the limits of its swing. v

2. In a metal planer, the combination with the mounting member of a tool head, a clapper box mounted thereon, a clamp mounted on the support, and having an arc-shaped shoulderand a flange projecting from said shoulder downwardly over the upper edge of the clapper box, said shoulder and edge of the clapper box being formed on an arc with constitute stops for the clapper box at the two swing.

CARL E. LINDEN. GEORGE n. LANGEN.

ends of its full clearance between said shoulder and edge, and 

